of a few bad apples. wisconsin was bino means the only focus for the president today. he directed his physician to put out a statement denying that mr. trump had a stroke or a cardiac event when he made an unannounced visit to walter reed national medical center in november of last year. his physician did not say why the president visited the hospital. but there are lingering questions about why vice president mike pence was put on standby, so we'll have more on that in just a moment. now, all this happening while health officials tonight are issuing a stark warning about the covid-19. admiral girard, the covid testing czar, said this labor day weekend will be key to containing the virus and making sure there isn't another spike. there's a lot of news to cover tonight. we have two reporters in kenosha to give us a full picture from the ground. cbs' paula reid is going to lead off our coverage. good evening, paula. >> reporter: good evening, laura. president trump visited today

over objections from local leaders in an effort to draw attention to destruction from recent protests. but while he was in a meeting with local law enforcement officials today, he refused to answer a question about systemic racism in policing, the issue at the heart of much of the unrest here in kenosha. prsident trump arrived in the embattled part of this city under heavy security, accompanied by attorney general bill barr and homeland security chief chad wolf, they toured burned businesses and thanked local law enforcement leaders who helped quell the unrest. >> you have done a fan task job. >> reporter: but mr. trump made no mention of the police shooting of jacob blake that prompted much of the violence, and he did not meet with the blake family during today's visit. the president is under fire tonight for comparing excessive force by police to choking on the golf course. >> but they choke, just like in a golf tournament, they miss a three-foot putt. >> reporter: mr. trump has consistently tried to tie joe biden to the violence in u.s.

cities. >> kenosha has been ravaged by antipolice and anti--american riots. >> reporter: last night he touted a strange and baseless claim that biden was being controlled by the people in the streets. >> people that you've never heard of, people that are in the dark shadows, people that are -- >> reporter: what does that mean? that sounds like conspiracy theory "dark shadow." what is that? >> they're people you have never heard of. they're people that are on the streets. they're people that are control the streets. >> reporter: biden, who is expected to announce a record campaign fund-raising hall of over $300 million in the month of august, has accused the professional of inciting violence rather than working to stop it. >> fires are burning and we have a president who fans the flames rather than fighting the flames. but we must not burn. we have to build. >> reporter: meanwhile, a new book on the president is raising questions about his health. it claims that vice president pence was told to stand by in case mr. trump was incapacitated during an unscheduled visit to

walter reed hospital last november. the president tweeted today that the idea that he suffered a series of ministrokes was fake news. but the author never mentions ministrokes in the book. the controversy forced president's personal physician to release a statement, saying he has not been evaluated for a stroke and remains healthy. paula reid, cbs news, kenosha, wisconsin. >> donald trump! four more years! >> reporter: i'm mola lenghi, also in kenosha, where tonight, some local trump supporters hope the president a visit will help the town heal. >> a lot of people lost a lot of things. we just need to start being divided by our differences. >> we support god. we support trump. and we're praying for our country. >> reporter: while police and national guard members monitored what were at times heated but mostly peaceful protests in kenosha, today, president trump also addressed unrest in portland, where overnight potesters clashed with police, the president saying this about aaron danielson, the victim of

saturday night's fatal shooting: >> he was targeted. they targeted him. they shot niment street, and then they were so happy that he >>g t pridens vitonosha... >> we need a president that's going to unite our country and take us in a different direction. >> reporter: ...a counter-rally with jacob blake's family offering resources often lacking in the african american community, like voter registration and covid-19 testing. justin blake is jason's uncle. how is he doing? >> he's hanging in help his disposition and outgoingness is starting to return a little bit. >> reporter: personality? >> yeah, personality starting to light up the hospital and seeing who little jake is. >> reporter: jesse franklin lives in the neighborhood where blake was shot. he says before last sunday, he never protested a day in his life. now, his grass roots group, "black lives activists kenosha" is leading a local movement. >> woke me up. it happened right across the street from my home. i have kids. that man's kids were in that

car. that could have been me, and that's why it touched me. that's i didn't felt the need to step up and have a voice. >> reporter: well, the president left kenosha a few hours ago, but as you can see, still a few dozen demonstrators out here in front of the courthouse. meanwhile, the department of justice here in wisconsin continues to investigate the jacob blake shooting. we learned today, they've reviewed 28 videos relating to the shooting, including the two that have gone viral online. you'll remember, police here in the city of kenosha do not wear body cameras, norah. >> o'donnell: mola lenghi tonight, thank you. we've got breaking news tonight from the u.s. army announcing a big shake-up and an investigation at fort hood in texas after at least 12 soldiers have been found dead since march. and specialist vanessa guillen was found brutally murdered. we get more now from cbs' mireya villarreal. >> reporter: fort hood senior officer major general scott lanbean pushed aside as several high-level investigations are under way.

since march, at least 10 soldiers have been found dead, including vanessa guillen, who was murdered in april. army secretary ryan mccarthy announced the base investigations last month every resource and all of the energy we can of this entire institution behind fixing these problems. >> reporter: efflandt was set to move to fort hood, but that coveted assignment as commission commander has been taken away from him, and a new general has been placed in charge at fort hood. during the guillens' meeting with president trump in july, they asked for an independent investigation. why was it so important for the f.b.i. to take over this investigation? >> mostly because c.i.d., we lost trust with them since, you kow, a couple of days after the investigation. i just felt that, you know, that they weren't capable of doing the investigation. >> reporter: the army has said as soon as they finish up their investigation, they will be releasing their findings to congress and the public.

we've also been able to confirm the new commander should be on base in the next few weeks. norah. >> o'donnell: so many questions about what's been happening at fort hood. thank you. today, facebook said it removed a network of fake accounts tied to russian efforts to inflame political tensions right here in the u.s. one site that was taken down, called "peace data" has connections to the internet research agency. that is the notorious troll farm charged with trying to interfere in the 2016 presidential campaign. facebook says it acted after getting a tip from the f.b.i. we've got more now on that warning from the nation's top health officials. they say a safe labor day weekend will be key to containing the spread of covid this fall. previously, cased surged following memorial day and the fourth of july. and tonight, reopening schools remains a major issue nationwide. here's cbs' meg oliver. >> reporter: today, new york mayor bill de blasio struck a deal with the teachers' union, delaying in-person learning for

11 days to better prepare buildings. >> it will be rigorous. we're going to be looking constantly for any signs of a challenge we have to address. >> reporter: education will be in flux until there's a vaccine. today, a first look at how one might be distribute. a national association of scientists proposed a four-phase plan that starts with health care workers and first responders. meantime, hot spots continue to emerge. iowa is in the grip of coronavirus. on average, nearly 20% of tests are positive. as school struggles to return in person in salinas, california, a santa ana shot of the digital divide of students left behind by covid: two little girls doing their school work outside a taco bell so they can get access to wifi. after it went viral, strangers came to their rescue, raising more than $100,000 to help them and their mother, who are homeless. will ever student have a device beore you start all remote next

week? >> well, they're still arriving by truck daily. >> reporter: few places know the digital divide more than cleveland. last spring, 40% of families didn't have access to high-speed internet, and two-third didn't have a device to connect. superintendent eric gordon has been working all summer to put a device in every students' hand. >> that's an $18 million investment that we did not plan for but had to happen. when we're also working on are long-term permanent solutions to make internet a utility and not ia luxury, because i don't intend to be a superintendent going door to door saying we're unplugging you again. we have to solve this problem permanently. >> reporter: and some good news tonight about the effectiveness of vaccines. in a new study in the "new england journal of medicine," it shows that the antibodies people use to help fight the virus lasted at least four months, which will be key to helping schools here in new york and across the country reopen full time.

norah. >> o'donnell: on the top of every parents' list what's going on in schools. thank you, meg. and we turn now to europe where schools are riopening while on the verge of a second coronavirus wave with a dramatic surge of infections but fewer deaths, countries are taking new measures to try and stop the spread. we get more now from cbs' charlie d'agata. >> reporter: by the tens of millions, kids came back to school equipped with more than just a new pencil case-- face masks mandatory. in france from the sixth grade up. in spain, even toddlers, with students required to wash their hands five times a day. hardest hit spain has seen a huge spike in new cases-- 57,000 in the past week, even outpaings the united states. it follows the decision to reopen resorts, despite the risks. tourism had falby , loss of tens of billions of dollars. france up, too, hinting at

another nationwide lockdown. a european surge stretching to russia, which today surpassed oe million cases. one place the lockdown was lifted long ago wuhan, china, where there have been no cases for several weeks. first day back for school kids there, too. already for a fresh start. although there has been this surge here in europe, it hasn't been nearly as deadly, partly because more young people are testing positive, and those who are more vulnerable are getting better treatment. norah. >> o'donnell: charlie, thank you so much. in new york city tonight, hundreds of e.m.t.s and paramedics who were on the front line of the covid crisis may soon be headed to the unemployment line. the economic fallout from the pandemic could cost them their jobs, but they say it could cost new yorkers their lives if there's another covid flare-up. ossible cov5

epf defens 3700 paramedics and e.m.t.s responding to more than 7,000 911 calls a day at the height of the pacemaker. >> it's pretty much like battlefield triage. >> reporter: paramedic megan pfeiffer kept this video diary of us of her life in the trenches, when calls were coming every 15 seconds. >> right now it's patient after patient that's really sick, and a lot of them are getting intubated as soon as they walk through those e.r. doors. we're taking them in to tie dye. >> available, boom, another call. available again, boom, another call. >> reporter: rookie e.m.t. sheensheena williams' $35,000 js now over. e.m.t.s are the lowest paid first responders with their salary capping out at less than half what a firefighter could make while responding to 10 times the number of calls.

what will your life look like financially, emotionally, without a job? >> financially, broke. >> reporter: i think our viewers will say, "wait a second. of all jobs to cut, how could it possibly be the most front of the front-line workers." >> right, which is ridiculous, because if you think about it, new york is on our backs. you call 911, and who shows up first? e.m.t.s do. >> we were everybody's heroes and now it's kind of, all right, forgotten about. >> reporter: megan says if hundreds of their jobs are cut, the consequences could be dire. >> we still don't know enough about this virus so there is the potential for another wave to come through. if there are hundreds of e.m.s. workers let go, there's a good chance a lot of people could die. >> reporter: in a statement to cbs news, bill de blasio's office says he does not want the layoffs to happen and blames washington for a shortage of funds, telling cbs these potential layoffs are "a direct result of not having a federal

stimulus." norah. >> o'donnell: seems so cruel for so many of those people. nikki battiste, thank you. and there is still much more news ahead on tonight's "cbs evening news." face shields and vented masks may be more comfortable than standard masks, but are they effective? and a mystery in los angeles tonight. pilots report seeing a man wearing a jetpack flying near their planes. well, what happened next? that me are living to see another day. so at the first signs of a heart attack, call 9-1-1. it can save your life, so you can see a brighter tomorrow. a tomorrow where we reunite... celebrate... and overcome, together. because heart attacks need to be treated now just as they always were in the hospital. if you think you're having a heart attack, call 9-1-1 ...and survive today.

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>> reporter: when during the pandemic she finally had time for long-neglected reels that had come from a basement in sundar pichai. it was thought to be lost ff, like 75% of other silent films. >> in the film world, this is a pretty big deal. there's a lot of faulk lower about lost films. there's something-- i can say sexy? >> >> reporter: yeah. >> it's pretty sexy to find soin >> reporter: most silent films have succumbed to decay or were destroyed by their own studios says filmmaker and film historian jim hemphill. >> these things were destroyed. they're not just about what they're about. they are ay reflections of their time. >> reporter: which means they were often censored, perhaps why this copy is missing a title screen which had justified murder, which was criticized in early reviews. >> finding this film makes me wonder what archives would find if they had the resources and the time and the money that they

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this is the "cbs overnight news". i'm chip reid in washington. thanks for staying with us. the largest school district, new york city, has pushed back the start of in person classes to september 21st to allow teachers to better prepare. other large districts in children, l.a. and miami decided to start the school year with remote learning but new york has a hybrid plan. some days, the kids are in school. some days, they're on line. the in in person part includes mask wearing, class size, and making sure every school has a

nurse. whether that will be enough remains to be seen. overseas, most schools are already in session. they're providing lessons for the u.s. roxana sabieri has the story from london. >> ok. guys. attention, please. >> reporter: for most kids in the uk it's back to school for the first time since march. the pandemic has created a new reality with new rules. kids here are supposed to clean your hands more often and social distance when possible, though that's already proving to be a challenge. prime minister boris johnson has insisted that under the plans drawn up by his government, schools can can reopen same. >> when i asked you what was going to make you nervous, not a single one of you so far, anyway, mentioned coronavirus. you're quite right. you're quite right. it shouldn't. you shouldn't be worried about it. schools are safe. you're going to have a task time. >> reporter: as rosendale in

london, teachers set up signs outshowing kids how to stand apart. students will stay in bubbles of 30 and start the day at different times. kate atkins is the principal. is the timing right? >> children need to play with each other and they need to be learning and developing, soond i think that we have to do everything that we can do in order to make the school as safe a place as possible for children and staff to come to. and also that there might be changes that we need to make as we go along. >> reporter: so you have to be able to imprevies? >> yes. >> reporter: schools around the world are impreviesing. in shanghai they're taking temperatures as kids return for the first day of the new term. in france, where a recent rise many virus ineffects forced the government to admit that not all classes could safely reopen today as plands, everyone over age 11 now has to wear a mask, even in cl